ATR3/ATR6/ATI50
50.0032.01.01 1/2
ATTENUATORS
ATR3/ATR6/ATI50
FUNCTION
Attenuates the volume of the depending speakers.
DESCRIPTION
100 V line input (IN). 100 V line output (OUT) to be connected directly to the speakers. 24 V power supply input (DC24) for the
relay (switches off the attenuator in case of a high priority message)
Resistive attenuator for output powers of 3 W and 6 W (ATR3 and ATR6, respectively). For output powers of 50 W an inductive
attenuator (ATI50) is needed. For correct operation, the total sum of power ratings of the speakers connected to a resistive
attenuator must be the same as the power rating of the attenuator itself (3 or 6 W with a tolerance of 1 W). If this is not the
case, the actual attenuation will not match the attenuators position. The inductive attenuator type will adapt itself to the load
installed (from 0 to 50 W). In installations where the total power rating is unknown, it’s recommended to use this attenuator
(ATI50).
FEATURES
INPUTS: IN: Input from an amplifier or program selector.
DC24: Input from the relays’ power supply module.
OUTPUT: OUT: Direct output to the speakers.
ATR3/ATR6/ATI50 WIRING
Component side view
3 and 6W resistive attenuator: ATR3/ATR6
Component side view
50W inductive attenuator: ATI50
24 V power +
input for the -
rela
100 V input from
- amplifier or
+
ro
ram selector
- 100 V output
+
o s
e
ke
s
- 100 V input from
+ amplifier or
program selector
100 V output -
to speakers +
24 V power -
input for the +
relay